public void TestPixelTransferWithTransform2(bool useBilinear)
{
var imgPath = System.IO.Path.Combine(TestContext.CurrentContext.TestDirectory, "Resources", "dog.jpeg");
var img = Graphics.Bitmaps.MemoryBitmap <BGR24> .Load(imgPath);
if (!img.AsSpanBitmap().TryGetAsSpanTensor(out var src))
{
throw new InvalidOperationException();
}
var dst = new SpanTensor2 <BGR24>(384, 384);
var dst2 = new SpanTensor2 <System.Numerics.Vector3>(384, 384);
var srcX =
System.Numerics.Matrix3x2.CreateScale(0.4f)
* System.Numerics.Matrix3x2.CreateRotation(0.3f);
srcX.Translation = new System.Numerics.Vector2(15, 35);
var time = System.Diagnostics.Stopwatch.StartNew();
dst.AsTensorBitmap(Imaging.ColorEncoding.Undefined).FillPixels(src.AsBitmapSampler(Imaging.ColorEncoding.BGR), (srcX, MultiplyAdd.Identity, useBilinear));
time.Stop();
TestContext.WriteLine($"{time.Elapsed.TotalMilliseconds}");
time = System.Diagnostics.Stopwatch.StartNew();
dst2.AsTensorBitmap(Imaging.ColorEncoding.Undefined).FillPixels(src.AsBitmapSampler(Imaging.ColorEncoding.BGR), (srcX, MultiplyAdd.Identity, useBilinear));
time.Stop();
TestContext.WriteLine($"{time.Elapsed.TotalMilliseconds}");
dst.AttachToCurrentTest($"tensorTransform-{useBilinear}.png");
}
public void TestPixelTransferWithTransform1()
{
var src = new SpanTensor2 <BGR24>(16, 16);
var dst = new SpanTensor2 <BGR24>(50, 50);
for (int y = 0; y < src.Dimensions[0]; y++)
{
var row = src[y];
for (int x = 0; x < src.Dimensions[1]; x++)
{
row[x] = (y * 16, x * 16, x + y * 2);
}
}
var srcX =
System.Numerics.Matrix3x2.CreateScale(1)
* System.Numerics.Matrix3x2.CreateRotation(0.3f);
srcX.Translation = new System.Numerics.Vector2(-15, -35);
dst.AsTensorBitmap(Imaging.ColorEncoding.Undefined).FillPixels(src.AsBitmapSampler(Imaging.ColorEncoding.BGR), (srcX, MultiplyAdd.Identity));
// dst.FitPixels(src, MultiplyAdd.Identity, true);
dst.AttachToCurrentTest("tensorTransform.png");
}